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Ricca M, Zhang W, Li J, Fellowes T, White JM, Donnelly PS, Rizzacasa MA. Synthesis of acyloin natural products by Mukaiyama hydration. Org Biomol Chem 2022; 20:4038-4047. [PMID: 35506986 DOI: 10.1039/d2ob00651k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The acyloin natural products are a family of bioactive compounds isolated from fungi and myxobacteria. The total synthesis of 7 members of the acyloin family was achieved via a HWE reaction followed by Mukaiyama-Isayama hydration, using novel Co(II) and Co(III) Schiff base SALPN complexes as catalysts for the key enone hydration step. Furthermore, we have shown that a mild acyloin rearrangement is possible under Mukaiyama hydration conditions, which was crucial in the success of this approach.
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Affiliation(s)
- Michael Ricca
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Wei Zhang
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Jiaqi Li
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Thomas Fellowes
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Jonathan M White
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Paul S Donnelly
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
| | - Mark A Rizzacasa
- School of Chemistry, The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria 3010, Australia.
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2
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Draft Genome Sequence of the Sattazolin-Producing Strain Pseudonocardia sp. C8, Isolated from a Mud Dauber Wasp Nest in Nepal. Microbiol Resour Announc 2021; 10:10/10/e00007-21. [PMID: 33707315 PMCID: PMC7953278 DOI: 10.1128/mra.00007-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Here, we report a 6.2-Mbp draft genome sequence of the bacterium Pseudonocardia sp. strain C8, which gave insight into the complete secondary metabolite production capacity of the strain and hinted that the strain possibly represents a new species. Here, we report a 6.2-Mbp draft genome sequence of the bacterium Pseudonocardia sp. strain C8, which gave insight into the complete secondary metabolite production capacity of the strain and hinted that the strain possibly represents a new species.
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Schieferdecker S, Shabuer G, Letzel AC, Urbansky B, Ishida-Ito M, Ishida K, Cyrulies M, Dahse HM, Pidot S, Hertweck C. Biosynthesis of Diverse Antimicrobial and Antiproliferative Acyloins in Anaerobic Bacteria. ACS Chem Biol 2019; 14:1490-1497. [PMID: 31243958 DOI: 10.1021/acschembio.9b00228] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Metabolic profiling and genome mining revealed that anaerobic bacteria have the potential to produce acyloin natural products. In addition to sattazolin A and B, three new sattazolin congeners and a novel acyloin named clostrocyloin were isolated from three strains of Clostridium beijerinckii, a bacterium used for industrial solvent production. Bioactivity profiling showed that the sattazolin derivatives possess antimicrobial activities against mycobacteria and pseudomonads with only low cytotoxicity. Clostrocyloin was found to be mainly active against fungi. The thiamine diphosphate (ThDP)-dependent sattazolin-producing synthase was identified in silico and characterized both in vivo and in in vitro enzyme assays. A related acyloin synthase from the clostrocyloin producer was shown to be responsible for the production of the acyloin core of clostrocyloin. The biotransformation experiments provided first insights into the substrate scope of the clostrocyloin synthase and revealed biosynthetic intermediates.
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Affiliation(s)
- Sebastian Schieferdecker
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Gulimila Shabuer
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Anne-Catrin Letzel
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Barbara Urbansky
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Mie Ishida-Ito
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Keishi Ishida
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Michael Cyrulies
- BioPilot Plant, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Hans-Martin Dahse
- Department of Infection Biology, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
| | - Sacha Pidot
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, 792 Elizabeth Street, Victoria 3010, Australia
| | - Christian Hertweck
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstr. 11a, 07745 Jena, Germany
- Faculty of Biological Sciences, Friedrich Schiller University Jena, 07743 Jena, Germany
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Palmieri A, Petrini M. Tryptophol and derivatives: natural occurrence and applications to the synthesis of bioactive compounds. Nat Prod Rep 2019; 36:490-530. [DOI: 10.1039/c8np00032h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report presents some fundamental aspects related to the natural occurrence and bioactivity of tryptophol as well as the synthesis of tryptophols and their utilization for the preparation of naturally occurring alkaloid metabolites embedding the indole system.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
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Cimmino A, Nocera P, Linaldeddu BT, Masi M, Gorecki M, Pescitelli G, Montecchio L, Maddau L, Evidente A. Phytotoxic Metabolites Produced by Diaporthella cryptica, the Causal Agent of Hazelnut Branch Canker. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:3435-3442. [PMID: 29537269 DOI: 10.1021/acs.jafc.8b00256] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
From the culture filtrates of Diaporthella cryptica, an emerging hazelnut pathogen, 2-hydroxy-3-phenylpropanoate methyl ester and its 3-(4-hydroxyphenyl) and 3-(1 H-indol-3-yl) analogues, named crypticins A-C, were isolated together with the well-known tyrosol. Crypticins A-C were identified by spectroscopic (essentially nuclear magnetic resonance and high-resolution electrospray ionization mass spectrometry) methods. The R absolute configuration (AC) of crypticin A was determined by comparing its optical rotation and electronic circular dichroism (ECD) spectrum with those of papuline, the methyl ester of (-)( S)-phenyllactic acid isolated as the main phytotoxin of Pseudomonas syringae pv. papulans, responsible for apple blister spot. The ACs of crypticins B and C were determined by time-dependent density functional theory calculations of their ECD spectra. Papuline and the new metabolites herein isolated, except tyrosol, were tested at 1 mg/mL on cork oak, grapevine, hazelnut, and holm oak leaves using the leaf puncture assay. They were also tested on tomato cuttings at 0.5 and 0.05 mg/mL. In the leaf puncture assay, none of the compounds was found to be active. Crypticin C and papuline were active in the tomato cutting assay. Additionally, crypticin C displayed moderate inhibitory effect against Phytophthora cambivora.
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Affiliation(s)
- Alessio Cimmino
- Dipartimento Scienze Chimiche , Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4 , Napoli 80126 , Italy
| | - Paola Nocera
- Dipartimento Scienze Chimiche , Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4 , Napoli 80126 , Italy
| | - Benedetto Teodoro Linaldeddu
- Dipartimento Territorio e Sistemi Agro-Forestali , Università di Padova , Viale dell'Università 16 , Legnaro , Padova 35020 , Italy
| | - Marco Masi
- Dipartimento Scienze Chimiche , Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4 , Napoli 80126 , Italy
| | - Marcin Gorecki
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi, 13 , Pisa 56124 , Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Moruzzi, 13 , Pisa 56124 , Italy
| | - Lucio Montecchio
- Dipartimento Territorio e Sistemi Agro-Forestali , Università di Padova , Viale dell'Università 16 , Legnaro , Padova 35020 , Italy
| | - Lucia Maddau
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia , Università degli Studi di Sassari , Viale Italia 39 , Sassari 07100 , Italy
| | - Antonio Evidente
- Dipartimento Scienze Chimiche , Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4 , Napoli 80126 , Italy
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Yu F, Tian X, Sun Y, Bi Y, Yu Z, Qin L. Xenocyloin Derivatives from Liquid Cultures of Xenorhabdus bovienii SN52. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701201209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Members of genus Xenorhabdus are symbiotically associated with entomopathogenic nematodes of genus Steinernema. Herein, we describe the isolation and purification of four novel metabolites, xenocyloins G-J (1–4), from liquid cultures of Xenorhabdus bovienii SN52 by extensive column chromatography and semi-preparative HPLC. Chemical structures of the xenocyloin derivatives were determined based on comprehensive NMR spectra and HR-ESI-MS analyses. All compounds exhibited significant collagen-induced anti-platelet aggregation activities, among which xenocyloin H (2) exhibited the strongest activity with an inhibition rate of 96.0 ± 0.1% at a concentration of 50 μM. The xenocyloin G (1) and H (2) exhibited anti-platelet activities with IC50 values which were 31.7 ± 4.4 μM and 27.5 ± 3.5 μM respectively; whilst under similar conditions the IC50 value for aspirin was 289.5 ± 15.7 μM, nearly ten times less than 1 and 2.
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Affiliation(s)
- Feng Yu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Changchun Agricultural Products Quality Safety and Inspection Center, Changchun 130022, China
| | - Xiaomei Tian
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Ying Sun
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Yuhui Bi
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhiguo Yu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Li Qin
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
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Benzofuran as a dienophile in π4s+π2s cycloaddition with cyclohexa-2,4-dienones. Studies on synthesis and photoreaction of dihydrobenzofuran annulated bicyclo[2.2.2]octenones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2015; 32:1389-471. [DOI: 10.1039/c5np00032g] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review summarizes the isolation, structure determination, total syntheses and biological activities of simple indole alkaloids and those with a nonrearranged monoterpenoid unit, with literature coverage from 2012 to 2013.
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Affiliation(s)
- Minoru Ishikura
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Takumi Abe
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Tominari Choshi
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
| | - Satoshi Hibino
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
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Zhang MZ, Chen Q, Yang GF. A review on recent developments of indole-containing antiviral agents. Eur J Med Chem 2014; 89:421-41. [PMID: 25462257 PMCID: PMC7115707 DOI: 10.1016/j.ejmech.2014.10.065] [Citation(s) in RCA: 561] [Impact Index Per Article: 56.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 10/20/2014] [Accepted: 10/22/2014] [Indexed: 02/07/2023]
Abstract
Indole represents one of the most important privileged scaffolds in drug discovery. Indole derivatives have the unique property of mimicking the structure of peptides and to bind reversibly to enzymes, which provide tremendous opportunities to discover novel drugs with different modes of action. There are seven indole-containing commercial drugs in the Top-200 Best Selling Drugs by US Retail Sales in 2012. There are also an amazing number of approved indole-containing drugs in the market as well as compounds currently going through different clinical phases or registration statuses. This review focused on the recent development of indole derivatives as antiviral agents with the following objectives: 1) To present one of the most comprehensive listings of indole antiviral agents, drugs on market or compounds in clinical trials; 2) To focus on recent developments of indole compounds (including natural products) and their antiviral activities, summarize the structure property, hoping to inspire new and even more creative approaches; 3) To offer perspectives on how indole scaffolds as a privileged structure might be exploited in the future.
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Affiliation(s)
- Ming-Zhi Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Qiong Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China.
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjing 30071, PR China.
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